DATA SHEET

EMC SRDF Family of Software

Keeping the world’s most-critical data highly available and disaster-restart ready

The EMC SRDF family of remote replication solutionsThe EMC® Symmetrix® Remote Data Facility (SRDF®) family of remote replication software is the

most field-proven, widely deployed, array-based disaster restart solution in the world with tens

of thousands of licenses shipped in the most-demanding customer environments. Leveraging the

industry-leading high-end Symmetrix system, SRDF offers the most choice and flexibility to meet

any service-level requirement.

The SRDF family of software provides remote data replication, independent of the host and operating

system, application, and database. SRDF helps companies manage planned and unplanned outages,

enabling 24x7x365 data availability. It allows businesses to focus on maximizing revenue-generation

and customer-support opportunities, improve productivity, and control or reduce costs for increased

competitive advantage.

The SRDF family of software includes:

•SRDF/Synchronous (SRDF/S) maintains realtime synchronous remote data replication from one

Symmetrix production site to one or more Symmetrix systems located within campus, metropolitan,

or regional distances and provides a recovery-point objective of zero data loss.

•SRDF/Asynchronous (SRDF/A) maintains asynchronous data replication that is usually at extended

distances and provides a recovery-point objective that could be as minimal as a few seconds.

•SRDF/Data Mobility (SRDF/DM) provides for the transfer of a Symmetrix data volume to a secondary

Symmetrix anywhere in the world, enabling disaster restart, allowing information to be shared for

decision support or data warehousing activities, or for data migration between Symmetrix systems.

SRDF links

SecondaryPrimary

Open Systems Open Systems

Mainframe Mainframe

SRDF delivers high-performance synchronous and asynchronous remote mirroring enabling customers to meet their recovery-point objectives (RPOs) and recovery-time objectives (RTOs).

The Big Picture

•Highest performance: delivers unsur-passed recovery-point and recovery-time objectives with minimal server impact.

•Unmatched flexibility: Zero-data-loss exposure, very-long-distance and advanced multi-site protection capabili-ties enable resource optimization while meeting mixed service levels.

•Enterprise consistency: coordinated processing across multiple sets of data ensures enterprise-wide application restartability.

•Seamless integration: integration with hundreds of industry-leading enterprise, storage, and backup applications enables faster time-to-deployment and simplified management.

•Automated manageability: Provides flexible, easy-to-use, and automated management options to ensure continu-ous protection.

•Proven results: Confidently deploy the world’s most widely used high-end remote replication solution.

The SRDF family of software also consists of other options including advanced three-site capabilities

using the combination of SRDF/S, SRDF/A, and/or SRDF/DM, offering the most comprehensive port-

folio of remote replication solutions in the industry to meet a wide range of business needs for high

data availability, data mobility, and disaster-restart requirements.

The other SRDF options and advanced three-site solutions include:

•SRDF/Asynchronous Replication (SRDF/AR) option enables rapid disaster restart over any distance

with a two-site single-hop option using SRDF/DM in combination with TimeFinder, or a three-site

multi-hop option using a combination of SRDF/S, SRDF/DM, and TimeFinder.

SRDF/AR Single-Hop provides remote disaster restart at the secondary site with low data-loss expo-

sure (minutes to tens of minutes). SRDF/AR Multi-Hop provides long-distance remote disaster restart

with zero data loss achievable at the “out-of-region” site.

•SRDF/Cluster Enabler (SRDF/CE) option enables automated or semi-automated site failover using

SRDF/S or SRDF/A with Microsoft Failover Clusters. SRDF/CE allows Windows Server 2003 and

Windows Server 2008 Enterprise and Datacenter editions running Microsoft Failover Clusters to

operate across a single pair of SRDF-connected Symmetrix arrays as geographically distributed

clusters.

•SRDF/Star option is a three-site disaster-restart solution that can enable resumption of SRDF/A

with no data loss between two remaining sites, providing continued remote-data mirroring and

preserving disaster-restart capabilities.

It offers a combination of continuous protection, changed-data resynchronization, and enterprise

consistency between two remaining sites in the event of the workload site going offline due to a site

failure, fault, or disaster event.

As more businesses require solutions to provide the highest levels of disaster-restart capabilities

with zero to minimal data loss and low RTO, SRDF/Star is the industry’s first solution to enable

organizations to satisfy these requirements.

•SRDF Concurrent provides the ability to remotely mirror a Symmetrix production-site data device

to two secondary-site Symmetrix data devices simultaneously using either SRDF/S or a combination

of SRDF/S and SRDF/A.

•SRDF Cascaded is an advanced three-site solution that can synchronously mirror a Symmetrix

production-site data device with SRDF/S to a secondary-site Symmetrix data device, then asynchro-

nously mirror that secondary-site Symmetrix data device with SRDF/A to an out-of-region Symmetrix

data device with no data loss achievable in the event of a production-site disaster event.

•SRDF/Extended Distance Protection (SRDF/EDP) is a new disaster-restart solution providing cus-

tomers the ability to achieve no data loss at an out-of-region site at a lower cost. Using the cascaded

SRDF mode of operation as the building block for this solution, SRDF/EDP allows the intermediate

site to provide data pass-through to the out-of-region site.

•SRDF/Consistency Groups (SRDF/CG), provided at no additional cost, ensures application-depen-

dent write consistency of the application data being remotely mirrored by SRDF in the event of a

rolling disaster, across multiple Symmetrix systems or across multiple devices within a Symmetrix,

providing for a business point of consistency for remote-site disaster restart for all identified appli-

cations associated with a business function.

SRDF/A >200km

Out-of-Region Site

Secondary Site

Workload Site

SRDF/S <2

00km

SRDF/Star maintains continuous remote data mirroring protection by maintaining or re-establishing a remote mirror relationship between any two sites in the event of any one site going offline due to a failure, fault, or disaster event.

The key benefits of the SRDF family of software include:

•Protectsdataagainstlocalandregionaldisasters

•Increasesapplicationavailabilitybyreducingdowntime

•Minimizes/eliminatesperformanceimpactonapplicationsandhosts

•Independentofhostsandoperatingsystems,applications,anddatabases

•SupportsUNIX,Linux,mainframe,andWindowsoperatingsystemenvironments

•Integratedwithmajorserverclustersoftware,providingautomatedandsemi-automatedrestart

solutions to improve RPO and RTO

•Mission-critical,provensolutionwithtensofthousandsoflicensesshipped

The Symmetrix Management Console is a simple, intuitive, browser-based user interface for the

configuration and management of Symmetrix systems used to operate and monitor SRDF remote

mirroring operations.

Symmetrix Management Console provides health indicators for SRDF/A cache usage, cycle time,

and throughput at user-configurable polling intervals and with multiple levels of threshold alerting.

EMC CorporationHopkintonMassachusetts01748-91031-508-435-1000In North America 1-866-464-7381www.EMC.com

Take the next stepFor more information on the EMC SRDF family of remote replication products, contact your local EMC sales representative or authorized value-added reseller, call us at 1-866-464-7381, or visit our website at www.EMC.com.

EMC2, EMC, Symmetrix, TimeFinder, and where information lives are registered trademarks of EMC Corporation. All other trademarks used herein are the property of their respective owners. © Copyright 2009 EMC Corporation. All rights reserved. Published in the USA. Data Sheet 04/09 L523.15

Symmetrix Performance Analyzer can be launched from within Symmetrix Management Console and

provides enhanced monitoring of Symmetrix operations at the application (Device Group) level and

helps ensure successful SRDF/A deployments.

Maximize SRDF family benefits with EMC servicesEMC Global Services delivers expert implementation of SRDF family products by leveraging EMC’s

extensive storage deployment best practices and proven methodology to accelerate business results

without straining your resources. Our services professionals have the technical expertise and skills

needed to help you quickly realize the value of SRDF family software in your Symmetrix environment

without the risks of self-implementation. The EMC Global Delivery Model ensures rapid, flawless

service delivery in every customer engagement, regardless of location.

Ask your EMC sales representative about the full spectrum of SRDF family software solutions and

services from EMC that can benefit your organization.